Solder for cast iron and other metals for surfacing them



P atented Jan. 1, 1929. a

* UNITED sm-res PATENT OFFICE.

JEREMIAH Bu'rLnR, or OXFORD,

PENNSYLVANIA, ASSIGNOR OF ONE HALF TO ISAAC P. WALTON, F OXFORD, PENNSYLVANIA.

' ,SOLDER non CAST IRON AND OTHER METALS non sunrncme THEM.

i No Drawing. I

. poses Where solders can e used, it is the-pur'- l0 pose of the present inve tion to provide an improved solder particularly adapted for'use in conenctionwith cast iron and for surfacing cast metals, that is used elfectively for securely fasteningopposed pieces of-cast iron.

Another purpose of the invention resides in theparticular proportions. and the method of compounding, which has been found to insure effective use from a practical view point. It is tobe understood that the particulars herein given are in no way limitive, and that while still keeping within the scope of the invention, any desired modification of details and proportions may be made in'thecomposition of matter stances.

The invention comprises further'features and combination of ingredients to be hereinafter set forth and claimed.

In compounding the solder, a requisite amount of ground steel may be placed in a steel or cast iron vessel and brought to a according to circummolten state and particularly to red heat- Pure lead is then added to the molten ground 1 steel with block tin subsequently added. After adding the pure lead the molten mixture is maintained at a red heat for at leastv ten minutes, and then the block tin is added,

\ the mixturestill being maintained at a red heat.

A flux consisting of steel and emery, tobin bronze 1n a fine state, plaster of Par s, borax,

epsom salts and salt, having allowed this mixture to remain in a 'molten state for approximately fifty" minutes as near white heat as possible, keeping corn cobs or the like on the top of the vessel to obtain potash and thereby equalize the heat. This flux is'mixed with the first named ingredients, that is the ground "is claimed is steel, pure lead and block tin. However, a

small quantity of this flux is saved and is to be applied just before the entire composition of matter is removed from the furnace. In soldering pieces of metal, preferably cast iron and resurfacing various metals a quantity ofthis flux is applied, and the Application filed December 30, '1927. Serial No, 243,771.

of hydrochloric acid made fresh, at least not more than three days standing, to which a requisite quantity of zinc isadded, until it ceases to dissolve, then a requisite quantity of bicarbonate of soda is added to the composition matter. l This mixture .of flux 7 may. be strained througha clean cloth.

When fastening opposed pieces of metal preferably cast iron, or surfacing. v rious metals in particular cast iron, a reQisite solder is used for uniting the opposed metal or applied for surfacing the metal.

The various ingredients of this 'composition of matter are in tlie'following proportions for one pound, whic may be increased.

the

or decreased proportionately accordingto the quantity needed, to wit The flux to mix uirith these pro ortions of the first ingredients is 'compounde v in the fol-' lowing proportions, to Wit:

hydrochloric acid, zinc and bicarbonate of soda, is applied to theopposed metals to. be

Ounces. Ground steel 3f. Pure lead a- 13 Pure block tin' 3 v Ounces. Steel and emery "2 Tobin bronze 1 Plaster of Paris 1 Borax a Q 1 Epsom salts Salt I "In using the solder the flux consisting off united, then the solder is applied, sufi'icien't heat being used to melt the solder and cause a. secure adherence between the twoparts.

In surfacing a piece of metal the metal may be dipped in the flux solution.

While these proportions are herein defined for the quantity previously named, itis obvious that a greater or less quantity'may-be compounded, with theingredients proportionately increased or decreased. 4 7

.The invention having been-setforth, what A composition of matter for soldering or welding, consisting of ground steel, pure lead and block tin,'having a flux consisting of steel and emery and tob-in bronze of a fine grade and includin waster nf Pavia gredients bei ng appfbximaiiely the followv as re ans mg pmportlownsto tcancel Borax 1 9 Ground stee1 3- Epsom salts Pul eleed 11/ S l 7 A 5 Block /2 In testimony whereof he aflixes his signa- Flux',- steel and' emery approximately equal proportions Tobin bronze 1% ture."

JEREMIAH BUTLER. 

